If a piece contains trioles, the size of the grid that rasterizes the notes is required to contain a 3 as a factor.
For instance the raster of a measure is of size 2.2.3, or 2.3.2.
However, as is typical for Wolfgang Amadeus Mozart, the raster needs a second factor 3.
For instance, 2.3.2.3.
Unlike other composers, the division of a measure might not be constant over a piece:
The raster might change from 2.3.2.3 to 2.3.3.2 etc.
This means, the trioles might be quarters as well as sixteenth, and at a later point in quarters and eighths.
The string quartets are full of that, which might make them so hard to play.

For a long time, I focussed on the algorithms to suggest motifs and chords in music composition.
However, accurate playback of the music is just as important during the process of refining the score.
The limitations of the default MIDI synthesizer really bothered me.
Stefan Ehrlich recommended me to combine

the virtual MIDI driver
LoopBe1
as internal MIDI device to negotiate the instructions to high quality synthesizers such as

For comparison of before and after, please listen to the two versions of the La Campanella fugue below.

Finally, here is a playlist of modern songs that literally struck a chord in me:
The Voice Within by Christina Aguilera [Album Stripped, 2002],
Centerfold by Pink [Album I'm Not Dead, 2006],
Amnesia by Britney Spears [Album Circus, 2008].
When I am getting a bit tired, but would still like to get some programming done, I put on the discography of Linkin Park.
Their Lost in the Echo from [Living Things, 2012] is always a good injection.